Rivet



(No Model.) I

' J. L. THOMSON.

RIVET. v

Patented July 15, 1890.

WITNESSES wVE TOR UNITED STATES PATENT rrIcE.

JUDS ON L. THOMSON, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE JUD- SON L. THOMSON MANUFACTURING COMPANY, OF PORTLAND, MAINE.

, RIVET.

SPECIFICATION forming part of Letters Patent No. 432,498, dated July 15, 1890.

Application filed April 18, 1890. $erial No; 3&8A58. (No model.)

To aZZ whom, it may concern: rivet lies on or substantially on the outside Be it known that I, J UDsoN L. THOMSON, of of the article to which it is secured and be- Syracuse, in the county of Onondaga, in the comes Worn or rubbed by the abrasion of ar- State of New York, have invented new and ticles with which it may be contacted, and 55 useful Improvements in Rivets, of which the thus deterioriates the appearance of the artifollowing, taken in connect-ion with the acole to which it is secured. For the purpose companying drawings, is a full, clear, and of obviating these disadvantages I have conexact description. structed my improved rivet, which is provided My invention relates to an improved rivet with an open head, whereby, owing to the 60 to for holding the seams and other portions withless amount of material or surface of the head out seams of leather, fabrics, and other artion the outside of the article to which the rivet cles, and has for its object the production of is secured, the rivet-head is impressed to a a simple and effective constiuction adapted greater extent within said article, and theinto be inserted into the said articles without sertion of the rivet causes a portion of the 65 liability of cutting out a' portion thereof and article to which itis secured to enter the openthus forming a hole, and which is provided ing in its head and to be forced slightly bewith an open head, whereby aportion of said yond the outside face thereof. article is, upon the insertion of the rivet, It will be readily understood that accordforced through its head,and therebyprevents ingly as the amount of the head of the rivet 7c rubbing or abrasion of the rivet-head and also is decreased the deterioration of the appeargreatly adds to its appearance and prevents ance of said article is correspondingly denndue prominence being given thereto, as is creased, and that the portion of the material the case with a full-headed rivet. filling the opening in the rivet-head causes The invention also consists in the detail the prominence of the same to be reduced to 75 construction and arrangement of the parts of a minimum, and thereby renders the rivetmy invention, all as hereinafter more parhead comparatively imperceptible and also ticularly described, and pointed out in the prevents the abrasion of the rivet. This obclaims. vviation of the abrasion of the rivet-head is a In describing this invention reference is feature of great advantage, since in order to 80 0 had to the accompanying drawings, forming add to the appearance of the rivets they are a part of this specification, in which like letgenerally plated with nickel or other mateters indicate corresponding parts in all the rial, which soon becomes worn by contact. views. However, with my improved rivet a direct Figures 1 and 2 represent elevations of my abrasion and consequent wearing of said plat- 85 3 5 improved rivet, taken in planes at right aning of the rivet-head is absolutely prevented gles with each other. Figs. 3' and 4c are reand the field of use for the rivet is thus spectively top and bottom plan views of my greatly increased. improved rivet as shown in Figs. 1 and 2. Arepresents the rivet, which may be formed Fig. 5 is an elevation of a rivet formed with from a solid'section of wire by suitably-con- 9o a three-pronged shank. Fig. 6 is a bottom structed dies, or may be drawn from a metal,

plan view of the form of rivet shown in Fig. or formed by lapping a piece of sheet metal 5, and Fig. 7 is a modified form of a rivet upon itself, as in my previous patent, No. having prongs tapering from the inside out- 4623,38I, dated March 18, 1890. The prongs a, wardly. for securing the rivet to the desired article, 5 It is well known that rivets are nowgenermay be of any desired form or construction, ally and ordinarily used for securing together and may be formed by cutting out a portion seams and other portionsoileather, fabrics, of the blank from which the rivet is formed, and other articles where a strong, easily-apeither before or after said blank is formed into plied, and effective securing means is rea rivet. As preferablyconstructed, however, Ice quired. It will be readily understood that theopeningb,interposedbetweenthe adjacent when used for this purpose the head of the edges of the rivet-prongs, is of greater width at the bottom than the top, in order that the strength of the rivet-prongs may gradually decrease toward their extremities for the purpose of facilitating their easy entrance and easy bendingwhen inserted into operative position. It will also be understood that I prefer to use a tie a at the upper part of the rivet-prongs for preventing the undue separation of their base, which tie may be formed by making the opening 1) of less length than the rivet-prongs; but it will be understood that when the purpose is to secure together articles of extreme thinness this tie may be dispensed with, and the space 1) between the adjacent edges of the rivet-prongs may extend to the head a.

It will be understood that Ido not limit my invention to a rivet having any particular number of prongs, since, as shown in Figs. 5 and 6, three may be used, and experience has demonstrated that three are frequently of greater utility than two,and in some cases it is desirable to use a greater number of prongs.

At Fig. 7 I have shown the rivet-prongs as tapering from the interior outward for the purpose of further facilitating the ready clinching of said prongs, which tapering portion is especially applicablefor heavy work.

It will be understood that my invention is not limited to any particular construction either of rivet or rivet-prongs, nor to the precise number of the rivet-prongs.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. As an improved articleof manufacture, a rivet having prongs for attaching the same, and an opening in its head for receiving a portion of the material to which the rivet is secured, substantially as and for the purpose set forth.

2. As an improved article of manufacture, a rivet consisting of an open head, a tubular shank having two or more cut-outs for enabling the same to be readily clinched without cutting out the material to which the rivet is secured, substantially as and for the purpose specified.

3. As an improved article of manufacture, a rivet consisting of an open head, a tubular shank having two or more securing-prongs, and a tie at the upper part of said shank for preventing undue separation of the base of said prongs, substantially as and for the purpose set forth.

In testimony whereof I have hereunto signed my name, in the presence of two attesting Witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 13th day of March, 1890.

JUDSON L. THOMSON.

Witnesses:

CLARK H. NORTON, M. BAXTER. 

